The Leafmen live under the same dimensional frequency as creatures of the same size (like insects, small mammals and the Boggans). Because of this, they live multiple times faster than that of humans and larger animals (like deer). They are also able to leaps great heights and long distances with relative ease. They are also known to fly on the backs of birds similar to horses and biplanes.

Since the authority and territory is relegated to the forest in which they live in, the Leafmen would only appear should the story take place around Moonhaven. Because the Leafmen are a creation of William Joyce, the original creator for the Guardians, it is possible they share an in-canon universe, and by extension a shared universe to the fandom itself.